Wire winding machine



Aug,27,1946. D. BQPARK'INSON. 2406397 l WIRE wINpING MACHINEv Filed'Nov. 19, 1942 4 y 2 sheets-sheet 1 /NVENZOR By 0.5.34195//1/50/1/ Mexm( Arm/wey Aus. 27, .1946. D. B. PARK'NSON 2,406,397

WIRE WINDING MACHINE Filed Nov. 19, 1942 2 SheetS-Sheet 2 Patented Aug. 2,7, 1946 '1; `:.1 n

,2;4063397 WIRE WINDING MACHINE David B.,Parkinson,l Maplewood, N. J., 'assignor to 'v 'Bell Telephone Laboratories, Incorporated, e New York, N Y., a corporation of New York Y i, Application November 19, 1942Serial No. 466,132 y l le claires. (ciega-9) f, UNITED STATES PATENT- QFFICE l This inventionrelates to winding machines and e As shown in Fig. 1 the winding machine 8 may more particularly to machines for winding strand follow' the generalfo'rm of a lathe comprising( a materia] onto supports. 1 l bed 9, ahea I0, an'adjustable tail-stoel; I I, a

The object of `the invention isto provide a lead screw I2 The invention resides in a winding head operhead I`is equipped witha clamping device Ill able to wind the wire onto the dat support and Operated by means Qf'a handle lI5 to holdv one carrying a supply of the wire. 10K` end of a strip` I6 of insulating material and which In the Vdrawings:A may be' of the forni shown in Fig. 7. 'Ihe tail- Fig. l is a `view in perspective'of the winding SOCk l l iS equipped Witha Clamping device I'I machine with a nat support in position therein operatedby means of a handle I 8 to hold the ready to have a wire wound thereon; y i other end of the strip I6, the tail-stock II being Fig. 2 is an enlarged View of the winding head 15 adjustable along the" bed 9 to accommodate difsupported on a carriage and showing a portion of ferent lengths of insulating strips and so that the the support on which the wire is being wound; strip I6 may 'be heid rather tautly supported by Fig. 3 is a View corresponding towFig. 2 but the head an tail-stock portions of the machine. without the support and showing certain of the The Wlndl'ng had I9 ShOWn in Flg l, 2, 3 and parts in cross section; Fig.v 4 is a plan View of the 20 4 comprises' a frame 20 extending upwardly about winding head taken from the left of Fig 2 the posinon of the strip I6 and supported on a Fig. 5 is an edge view of fragmentary portions base 2| by means' of screws 22. l The base 2|v is of the winding head taken on the line 5,-5 in supported on a carriage 23 which rests on spaced Fig. 4; 1. tracks 24 and 25 on` the Ybed 9. Thecarriage23 trolling the rotation of a spool of wire, and the tracks 24 and 25 may comprise a handwheel Fig 7 shows one of various forms of support 'I mounted on a rotatable shaft 28 Wh1ch 1s gear the machine will accurately windvwith wire and connected to the rack I3, and a releasalolel clutch, with a Wire winding on the support v not shown but operated by means of a handle 29 prising` a flat strip of insulating material and a -I2. When'lthe handle 29'is operated to discon- Winding of wire on the strip, and more particu- Ileb the Carriage from'the leadscrewfIZ and the larly in making so-called tapered form resistance Wheel 27 iS turned. theoarrage 23 Will be moved elements comprising a tapered nat strip ef msualong the tracks 24 and 25 under 'control of the distance between the point of application of the 40 lead screw l2 will cause movement of the carriage operation. The wire kextending from the source housed in the `head Il).V r of supply te the strip-must :be maintained taut l A ring gear 30 is rotatably supportedin the while the wire is being wound onto the strip. windingv head I9 by means of a pluralit7 'fof the cycle of winding the wire onto the strip. a bolt-33 mounted in the frame 20V.' the conduring the winding operation. es formed to nt into the `groove l34.L vThe ring'gear s 3'6 is rotated by journaled on a 43i! in a counterclockwise direction vwill wire 39-.to be wrapped around the strip are provided in I6 to carry a supplyV of tlewire s y 16, sokthat' the`wire39 will be Wrapped around i ioreuidiug the wire.. 39

`taining ther wire.

means of a pinion 36 which, as shown in Fig. 4, is rotated by and slidably mounted on a rotatable shaftV 31 extending invspaced l relation with and along the back of the bed 9,

of gears, not VThe shaft 31 driven by means the shaft 31 being Y thefhead I0.

shown, but located in is hexagon in cross section and the pinion'36 is apertured to vaccomn'iodate.the shaft 31 but slides along the shaft 31 when the carriagef23 is moved along the tracks 24Vand 25, thepinion 36 being on an extension 38 of the frame shaft 31 is rotated the f Y drives the ring gear 36. Rotation Qi. thering gear cause a i6 which; is so supported Yby means oi the clampingY de-v vices I4 and l1 that the ring gear 36 aroundthe stationarily held strip I6.

'Ihe'Strip I6 ,of sheet material such as hard rubber.

ze. when the may be a comparatively thin 'strip phenol fiber or semi- 39 isf'being wound two semicircular plates `@and 4l the winding'head I9. The plates wand 4l are supported on Vthe frame 26 and extend through the aperture. in the ring `gear 36 and almost to the point of application of the wire 39 to the strip ,|6'. 'r Plate'll). is arranged' to reX- s n while 'the nwire on the strip,

'thestrip I6 to'hold 'the'strip'16against undue upward movement and; distortion during theV winding operation.. 'Plate 4 lis spaced a sufficient distance below Yplate as shown 'at 42 to accom'- jmodatethe thickness or the strip I6 and prevents undue downwardmovement and distortion of the strip I6 during'tile Winding operations. l

A spool'43 keyed at 44and latch d 'at 45. to a Spool Support 46'is'provide'd in the winding" head the wire 39..V The `spool 'supportV 4:6 is annular' in forma d is. supported 011 a plurality of smallwlie'els 41. whioh'are lspaoe- 'mounted' Online noA eearfe to provide three points of support'forthe spool support 46, each bearing, not shown, but mounted l To prevent undue "bending or dis- Atortion of the strip ljfrom'its required form yand position inion 36 is rotated and Y bracket 578 mounted on will rotate pulley 52 being in pulley 54 is'loeated'inthe same 'tend transversely Vacross 'the' uppersurface'. of

Wheel 41 beine mounted'on asuitable bearing Vsupported on a bearing, Support 48' mounted on the ring gear 30,."'1he "spool'fsupport 46'is. of 'Smaller' Outside. diameter' thanthe 'ring gear 3i! and comprises. an annular body'portion 49 and anannuiar 'fianeefpornoh eu which is or smaller diameter than the body portion 49 and arranged to provide av hub for the. 'spgoolllSL The.' body por.- ti'on. 49 is recessed to aocommodate 'the three Wheels 41 and has an 'annular groove. 5l formed in the inner surface of the Wall to receive the peripheral edge kportions of the wheels 41.y It

will be Seen;therefore., that. they ring" gear may roll around on the wheels 3l supported on their means of support on.Y tiley frame 2.6 While the spool 43 and the spool support 46 are held stationary,A and that, the spool support 46 Amay roll around on the wheels 41 supported on 'their means of supportV on the ring'gear 36;,also. that the ring gear 30 and, the Spool SlilDlJOfity 46 airy- 1 ille. the spool may eaehrotate'at a speed difier-4 entfronithe other; i "The ring gear 30] carries '33 from. the spool" means for carrying 43 A around the `g strip the strip I6.. The ring gear 30. also. oarries means s to the required. point of application on Ythe ystrip 'lfarid means formam- Y se ma. taut, @audition while the r is passing irom'tlre spool '43 "to thel st'ipfl.

. the; whose and spring 6.1 move the ous points ysuchY position that v pulley 56 to 5.5

4 The means above mentioned comprises a system 53, 54, and 56 over which the the strip I6. The pulleys 52, 53 and 56 are disposed at diierent points on the ring gear 36 so that the wire 39 in its `passage from the spool'43 to the strip I6 will run in a system of loops and the wire39 will be guided in its passage from the spool 43 to the required point'of winding on the strip I6. Brackets of suitable form mounted on the ring gear 30 and supporting low friction type bearings for the pulleys are located at the varirequired for the pulleys and the locations of the pulleys are such that the pulleys will be clear. of the spool 43:. The pulley 52 is sup-` ported on a bearing 51 `parallel spaced relation with the inner at surface of the ring gear 36 and in theowire 39' may be readily run from the spool y .y axial line `as the pulley 52 and issupported on a bearing 59 which is separate from the bearing .51. Pulley 53 is mounted on a bearing supported on a bracket 6l mounted von the ring gear 36 and rotates in a plane 90 degrees diierent from the plane of rotation of the ring gearV 30 and the planes ofkrota'- tion or theother pulleys in the system.

The pulley 55 is mounted on a suitable bearing 62 supported on the'free end of a movable arm 63 which is pivotally supportedat oney end 64 on a rotatable hollow shaft 65 telescoped over a pin 66 mounted Vatoneendinl the ring gear '36 and extending normally from the flat plane of the ring gear 36. The free end of the arm 63 will'be'moved from the positionl shown Fig. 4 and, so that Ythe pulley 551s brought. .nearertothe strip 16 when Athe tension on the rwire 39jincreases.V A restoring spring 61 is provided' to urge thearm` 63 toward normal position when theitension on" the wire 39 is reduced.' The' spring 611s attached at one end to an ear 68 which is secured to the arm 63 and the other end of the spring 61 is secured .to a screw 69 adiustably mounted inr a stud 16 mounted on the ring gear. 36.; 'By turningthe SCreW 69 the tension of the. spring 61'may be increased or decreased to meet a required tension for the wire 39 The, coursefof the wire 39 through the system of pulleysis indicated in Figs. 2 and 4 in which the wire coming from the spool 43 passes. under and then over the, pulley 52,v around pulley 5?, pulley 5.4.; pulley 55.', pulley 56 and from the; strip' i6. As shown Fie.. '4; when` the winding machine 8j is operating to'wind wire 39 'onto thev strip I6 the strip. I6. is. held stationaryfin the machine and the. ring gear 36 rotates in the. direction indicated bythe arrow, the ring gear 30, being rotated by means of pinion 36 whioh is driven' i the shaft 3.1. The winding head lll ismoved along the. bed of the machine by means of theV lead screw l2 so that the. winding head I9 Ytravels lengthwise of the stri-p i6. and helically winds the wire, 3S. onto the strip i6# It will be. seen that due to the form of the strip I6 and theposition of the pulley 56 the distance between the pulley the Vpoint of applicatio'nfotl the wire 3 3- tothe strip I6 changes andthat these changes wouldy have the effect of changing, the tension of the-,wire running through the pulley.systemeicept. for the fact thatv the afm pulleyA 55 relative toI the pill.-

leys 54 and 56. Villierrthe. instant pointer;V ap- 1ts passage from the spool 43 to n which is supported on av the ring gear 36,7the` The by meansY of 56 andV 63. linizieraction of thefpull. on the -eounteracting pull or the ...5 plicat'in of the' wire' 39 is on'the right f the strip I6 and the pulleyv 56 is in the position shown in'Fig. 4,the free end ofthe arm 63 and the pulley "55 are drawn toward the strip I6 against the action of the spring 61: It Will'be seen that as the vring gear 30 continues. to rotate and the distance between the pulley 56 and the right edge'ofthe strip I6 increases, the free end ofthe arm 63 and the pulley 55 will be drawn still nearer tothe strip I6.' Upon further r-otation of the ring gear f 30 so that the wire 39-is-brought into engagement withv the left edge of-the strip I6 and while the wire 39 is passing over vthe left edge' of the strip I6, the free end of thearn- 63 and the pulley' 55 move outwardly under the influence of spring 61 to takeup the slack that would .otherwise bev 'created'in' the run of the wire 39 through the pulley system. A bracket 1l having an elongated curved aperture 12formed therein and a pin, not shown, extending from the arm 63 into the aperture 12 are provided to limit the movement of the arm 63, the bracket 1I being supported on the frame 20 and extending transversely of the arm 63. Y

Spool 43 rotates in the same direction as the ring gear 39 and rides on the wheels 41, the spool being pulled around by means4 o fthe'wire 39 'as the Wire 39 is being wound ontoth'e strip'l. To prevent overspeed of the spooll 43 such as' might result in reducing the tension on the Wire 39, a`

brake 13 is provided. The brake 13 as shown in Fig. 6 comprises a brake arm 1.4 Apivotally supported on a pin 15 mounted on the ring gear 36,

-a cam'16 attached to one end of the'rotat'able shaft 65 and a brake drurnr11 formed on the pe'- riphery 0f the body portion 49 of the spool support 46. The brake shoe portion 18 of the brake the spool '43. to the strip I6. The tnsi'o'n'onthe wire 39 should `be such. that the wire will slightly press into the edge portions of the strip I6, the tension'being set byy adjustment of the spring 61 through operation of the screw69.v As thewire y39 islpaid out and the distance betweenA the pulley .56 andl the point of winding the wire onto the strip I6 changes, the arm 63 and the lpulley 55 are moved in accordancewith the vpull* ony the wire and the vpullof the spring 61 to maintain the'1wire taut without breaking :the wire 39. Movement ofthe armv 63: causes movement of the cam 16which isa'djustedso` that'v the low spot '82 will bemoved entirelyA past' the I end '83 .of` the brakeiarm 14 when the pulley 56 comes relatively near'andf passes by an edge of the strip I6. The brake arm14 is therefore operated byv means of the higher portion of the cam 1.6 and the shoe portion 18 engages the-brake drum 11 to slow down'the rotation of the spool support 46 vand the spool 43. This braking action and vmovement ofthe arm 63` and pulley 55 prevent overe 'speeding of the spoo1f43 andthev development' of slack inthe wire 39.

.\ Y. s It will-,be seen that vthe yvarious,operationsof the Larm63 and pulley 55':and.thebrake 13 will result in maintainingthe wire substantially uniarm 14 is moved into frctional engagement with the brake drum 11 by means of the cam 16 which is rotated by means of the arm 63 underaction of its restoring spring 61, the cam 16 being attached to the rotatable shaft 65, which is mechanically connected to the arm 63, by means of a finger 19 one end of which is journaled on the pin 66 and secured to the shaft 65. The other end of the linger 19 is adjustably set in teeth 80 provided on a plate 8| which is secured to arm 63. 'I'he cam 16 is cut away to provide a low portion 82 against which the rear end 83 of the brake arm 14 is pressed by means of a spring 84 mounted on a pin in 85 on the ring gear 30, a stop pin 86 also mounted on the ring gear 39 being provided to hold the spring 84 pressed against the brake arm 14. When the cam 16 is rotated to bring the low portion 82 past the end 83 of the brake arm 14, the shoe 18 frictionally engages the brake drum 11 to slow down the rotation of the spool formly .taut during the winding operation and that strips of rectangular form orhaving a curved edge such as shown in Fig. 'lxmayb'e wound vwith wire by means of the winding machine 8 without having the tension` Aon the wire 39 .reduced .to such angextent a'sxto be insuiicient 'to vpartly embed the Wire 39 in edge portionsof thestrip I6.

What is.claimed is: I

1. `A winding machine foriwinding. strand ma'- terial onto a support comprising means for holding said support in taut condition, a winding head, `a rotatable ring,l a spool and a rotatable holder for said spool operable to rotate around the position of said support, means to rotate said ring, means to cause relative movement of said Winding head and said means for holding said support, a pivoted arm carried by means of said rotatable ring and movabletoward and away from the position of said support, means to move said support 46 so that the spool support 46 and the spool 43 will rotate at a slower speed than the ring gear 39. The cam 16 may be manually set to various positions so that slight or more considerable rotation of the cam 16 will be required to bring the low spot 82 past the end 83 of the brake arm 14. The setting of the cam 16 to the required position may be accomplished by manually moving the finger 19 in the teeth 80 since the finger 19 is journaled on the pin 66 and is secured at its pivoted end to the shaft 65.

Assuming that the strip I6 is made of' fiber or semihard rubber and is of the form shown in Fig. 7, that the strip I6 `is clamped in the Winding Y arm away from the position of said support, a system of pulleys carried by said ring and a pulley in said system carried by said arm, said spool carrying a supply of said strand material and said system of pulleys being arranged to guide said strand material from said spool to said support, a brake operable to control rotational movement of said spool and holder for said spool andoperated by means of said arm, said spool and holder for said spool being rotatable under the pull of said strand material as said strand material is being wound onto said support, and said arm and said brake being operable in conjunction to maintain said strand material taut while said strand material is passing from said.spool onto said support.

2. A winding machine for winding strand material onto a nat support comprising means for holding said support in taut condition, a winding head, a ring rotatably supported in said winding head, a spool, a spool support keyed to said spool, means supported on said ring and rotatably supporting said spool support, said ring, spool and spool support being rotatable around the position of said flat support, a supply of said strand material on said spool, a pivotally supported arm carried on said ring,- the free end of said arm being movable toward and away from the position of said at support, spring means'operating to'urge the freeend of said arm away from .the

' positionl of said fiat support, a system of pulleys toguide saidstrand material fromvsaid yspool'to said at support, a part of said system of pulleys being carried on the free end of said arm,V the other parts of said system being carried' on said ring, a brake device .operable against said spool support to'retard rotational movementsrof said 8 c wheels supported in spaced relation a spool carrying a supply of said wire, a spool supportV keyed to saidspool and rotatably sup:- ported on said second set of wheels, said spool and spool support being rotatable around the Y position of said support, two semicircular plates spool and spool support, said brake devioebeing v mechanicallyconnected to and :operable by means of` said arm, means to rotate said ring at a constant speed, means to cause relativeY movement of rsaid winding head and said atjsupport; said winding headv being operable Ato ywindsaidzstrand material onto said atsupport, said'spooland spool Asupport being rotated by the pullV of said strand material running through said system of pulleys, said arm being operated against the ac'- -tion Vofxits spring meansA toward the position of said flat supportiunder the pullof said strand material and operating to maintain said .strand material taut as it Yruns through said system of pulleys onto said support and said brake device V`operating toY prevent overspeedingof saidV .spool and spool support relative to the rotational speed of said .ringwhile said strandlmaterialis passing supported on said frameand extendinginto vclose relation with opposite flat surfaces of said support and substantially filling the space defined by said spool, means-to'rotate said ring, means to cause relative movement of said frameand support and lengthwise of said support, an arm pivotally. supported at one end and carried by said` ring, a system of pulleys forl feeding said wire from said spool onto said support, one of said pulleys being carried on the free end of said arm and the others on said ring, spring means me- I chanically connected to said ring and said army and operating to constantly urge the free/end of said arm outwardly of the position of said support and against the Vpull of said Wire, a brake Y drum formed on the periphery of said spool support, a brake device operableto frictionally engage said brake drum, a, cam mechanically and adjustably connected to the pivoted end of said arm `and arranged for operation ofl said brake device, said armoperating to maintain said wire Y in a taut condition as said Wire runs from the beginning ofVV said pulley system and from said system' to said support, and'said brake'device operating to slow down the rotation of said spool support and cooperate with said arm in maintaining said wire taut when said wire ispassing n across an edge portion of said support or across a comparatively narrow portion of said support.

DAVID B. YPARKINSON. l

on said ring, Y 

